Metal tire for vehicle-wheels.



E. SCHNEIDER.

METAL TRE FOR VEHICLE WHEELS.

APPLICATION FILED SEPT. 25. 1912.

' Patented Aug.

` ZSHEETS-SHEETI &AM;

E. SCHNEIDER.

MET AL TIRE FOR VEHICLE WHEELS APPLICATION FILEDSEPTZS, 92.

1,151,905. Patent eg 3 1 3315 17 CD a', V 12. a

METAL TIRE FOR'VEHICLE-WHEELS.

Specification of Letters Patent.

.sr TEs PATENT OFFICE. i

EUGNE SCHNEIDER, or LE CREUZOT, FRANCE.

Pateted Aug. 31, 1915.,

Application filed September 25, 1912. Serial No. 722366.

To aZZ whom 'it may conocrn: I

Be it known that I, EUGNE SGHNEIDER, of Le Creuzot, Sane-et-L0ire, France, have invented new and useful Improvementsin Metal Tires for VehicleWVheels, which is t fully set forth in the following specification;

Hitherto tres have been costructed coms prisng a tread band of strong metal such as steel or the like which is formed with a series of holes or grooves filled with a metal of less hardness such as aluminium for eX- ample, in such a manner that the whole presented a heterogeneous running or tread surface which was favorable to adhesion. In these known devices the constituent elements of the tire united by casting or riveting are with difiiculty replaced as regards their worn portions; furthermore, assem-' blage by riveting frequently gives rise to shearing of the rivets.

Similar to the tires referred to above the improved tire now contemplated comprses a band of hard metal having insertions of metallic elements of less hardness. The band of hard metal is characterized by the fact that it is constituted by a grating forned of a series of transverse elements arranged in juxtapositon, the intervals between the grating elements and the recesses formed in these elements forming a corre- Sponding number of housings for bars or blocks which are simply passed through in the operation of manufacture, the assemblage of the grating bars and the blocks of soft metal being insured by their respective profiles and by the fitting of the gratng elements in the beadings of the rim. To this end the grating elements are curved with the object of placing them in such position that the inner base is able to engage between theedges of the beadings by a hammering which destroys the curvature and simultaneously produces the complete engagement of the gratng in thebeadings of the rim and the imprisonment of the bars' or blocks in the housings in the gratng. i

A practical form of carrying the invention into practice is represented by way of example in the accompanying drawing, in which Figure l is a cross section on the line X X in Fig. 4 showing the tire after hammering the grating of hard metal. Fig. 2 is a similar section showing the grating element bent for placng it in position. F ig. 3 is a partial longitudinal section on the line Y Y in Fig. 4 which is a partal 'top plan.

The 'tireis supposed to be'fitted to a' rim A provided with beadings a and fixed to a ;vh'eel body B of any convenient'construclon.

The tire is constituted by a grating of hard metal formed of a series of I-shaped i elements or bars C united in pairs or groups of three or more the bases of the I of each bar forming a joint with the corresponding bases of thefollowing bar in such a manner that between the webs of the successive I s housings or recesses are formed for the reception of the soft metal blocks D (of aluminium for example) which complete the tire. Upon the plane of F ig. 4 three simple I shaped bars C have been shown by way of example and a bar C' formed by two assembled Ps. The lateral faces 0 of the bases of these successive I s adjon in the completely fitted tire.

The bases of the Ps present such a form that after being arranged in position they exactly fit into the beadings a of the rim. For the purpose of arranging them in place the bars are bent as shown in Fig. 2 thereby enabling them to be engaged between the internally projecting edges a' of the beadings a. The filling bars or blocks D are formed in such a manner that they can be engaged in the housings between two bent bars C arranged in juxtapostion.

The elements being thus arranged (F ig. 2) the curvatureof the bars C is removed by hammering until the bars exactly fit into the rim beadings (Fg. 1) simultaneously imprisonng by reason of the con- VeXity of the inner face of said bars the blocks D as ndcated by the left hand portion of Fig. l and also by the two end blocks at the left hand side of Fig. 3. The blocks D are then flattened by hammering as shown at D' Figs. l and 3.

It will be readily understood that the tire described dispenses with any fiXing members liable to be sheared off and to become detached in use. It is also easy to repair the tire in replacing the iron elements.

It is obvious that instead of being continuous the housings between the successive I-shaped bars or formed between the elements of the juXtaposed bars might be divided for the reception of a plurality of blocks of soft metal; the assembled I- "co ies of this atent ma be obtined f five cent fiat tread elements of hard metal having their ends adapted to be held under said beadings and having renterng sdes With conVeX edges to form holding recesses and other tread elements of soft metal held in said recesses.

'In testimony whereof I have signed this specificaton in the presence of two subscribing witnesses. 4

EUGENE SCHNEIDER.

Witnesses HANSON C. Coxn,

R. DE SERCLINGER. I

s each; by addressing the Commissioner of Patents, 1

Washington, I). C." 

